Question # 1

In the bessemerization process.

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Roasted ore is beated.

Molten matte is removed.

Molten matte is heated

Molten matte is added

Raw materials used in Solvay's process.

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Brine

Lime stone

Ammonia gas

All

Ammonical brine is prepared by dissolving ammonia gas in.

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NaCl

CaCO₃

CaCl₂

Na₂SO₄

In smelting process a small amount of coke is required because:

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it is highly endothermic process

it is highly exothermic process

it is very fast process

it is very slow process

The residual oil is heated above 400 c to produce.

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Lubricants

Paraffin wax

Asphalt

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The number of carbon atoms present in petroleum gas.

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1-2

1-3

1-4

1-5

Composition of carbon in kerosene oil is.

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C₁₀-C₁₂

C₁₂-C₁₂

C₁₆-C₁₈

C₃₀-C₃₀

Which one of the following is used as jet fuel.

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Kerosene oil

Lubricating oil

Fuel oil

Diesel oil

Sindh alkalies limited was established near Karachi in.

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1965

1966

1970

2000

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